R1171S151A Datasheet, PDF (5/36 Pages) RICOH electronics devices division – 2.0A/1.5A LDO REGULATOR

R1172x
ELECTRICAL CHARACTERISTICS
• R1172xxx1A
Topt=25°C
Symbol
Item
Conditions
Min. Typ. Max. Unit
VIN Input Voltage
1.4
6.0
V
ISS Supply Current
VIN−VOUT=1.0V, VCE=0V,
IOUT =0A
60
100
µA
Istandby Standby Current
VIN= 6.0V, VCE=VIN
0.1
1.0
µA
VOUT Output Voltage
VIN−VOUT=1.0V ^{VOUT > 1.5V}
IOUT=100mA
VOUT ^<= 1.5V
×0.98
−30
×1.02 V
+30 mV
IOUT Output Current
VIN−VOUT=1.0V
1
A
∆VOUT/
∆IOUT
Load Regulation
VDIF Dropout Voltage
VIN−VOUT=0.3V
1mA ^<= IOUT ^<= 300mA
−15
15
30
If VOUT ^<= 1.1V, then VIN=1.4V
mV
VIN−VOUT=0.3V
1mA ^<= IOUT ^<= 1A
50
If VOUT ^<= 1.1V, then VIN=1.7V
Refer to Dropout Voltage Table
∆VOUT/
∆VIN
Line Regulation
RR Ripple Rejection
∆VOUT/
∆Topt
Ilim
Output Voltage
Temperature Coefficient
Short Current Limit
IOUT=100mA
VOUT+0.5V ^<= VIN ^<= 6.0V
If VOUT ^<= 0.9V,
1.4V ^<= VIN ^<= 6.0V
f=1kHz (VOUT ^<= 4.0V)
f=1kHz (VOUT > 4.0V)
Ripple 0.5Vp-p, VIN−VOUT=1.0V,
IOUT=100mA
If VOUT ^<= 1.2V, VIN−VOUT=1.5V,
IOUT=100mA
IOUT=100mA
−40°C ^<= Topt ^<= 85°C
VOUT=0V
0.05 0.20 %/V
70
60
dB
±100
250
ppm/°C
mA
RPU Pull-up Resistance for CE pin
1.9
5.0 15.0 MΩ
VCEH CE Input Voltage "H"
1.0
6.0
V
VCEL CE Input Voltage "L"
0
0.4
V
TTSD
Thermal Shutdown
Temperature
TTSR
Thermal Shutdown
Released Temperature
Junction Temperature
Junction Temperature
150
°C
120
°C
en Output Noise
BW=10Hz to 100kHz
30
µVrms
5